Open the brackets in the proper tenses: 1) i (to look) round and (to see) that somebody (to leave) his bag on the bench. 2) not only jane but also her sister (to be) at the party this week. 3) the number of days in a week (to be) 7. 4) sally (to buy) a new dresslast month but she (not to wear) it yet. 5) please wait for him here till he (to come) back.

1. I looked round and saw that somebody had left his bag on the bench
2. Not only Jane but also her sister have been at the party this week
3. The number of days in a week is 7
4. Sally bought a new dress last month but she hasn't worn it yet.
5. Please wait for him here till he comes back